1. CHU de Montpellier, University of Montpellier, Montpellier, France.
2. ELSAN, Clinique Bouchard, Marseille and Clinique Saint Michel, Toulon, France.
3. Universidade Positivo, Biotechnology Research Department, Curitiba, Brazil.
4. Division of Bariatric Surgery of DIAGNOMED, Affiliated Institution of the University of Buenos Aires, Buenos Aires, Argentina.
5. Gastro-Obeso Center, Sao Paulo, Brazil.